Automatic stop for phonographs.



oriisipii.

FRANCIS W. DOLER, 0F MOORESTOWN, NEW JERSEY.

AUTOMATIC STOP FOR PHONOGRAPHS.

To all 107i om 1125 may concern Be it known that I, FRANCIS W. DOLIER, acitizen of the United States, residing in liloorestown, -in the countyof Burlington. and State of N ew Jersey, have invented certain new anduseful Improvements in Automatic. Stops for lhonographs, of which thefollowing is aspeeification.

My invention relates to an automatic stop for a phonograph, graphophone,or other sound or voice reproducing;r apparatus.

lt is the object of my invention to provide simple and effectivelmechanical means for automatically stopping the movement of a soundrecord after the record has been traversed, completely or otherwise, bythe reproducing stylus or needle; and it is more particularly the objectof my inventionto provide apparatus for this purpose which dispensesaltogether with any addition to or alteration of a sound record. ,Tothis end I have provided simple means for releasing or .setting a brakewhich brings the record moving system to rest.

My invention resides in the features hereinafter described and pointedout in the claims.

For an illustration of one of the forms my invention may take referenceis to be had to the accompanying drawing, in which:

Figure 1 is a top plan view of a sound re- ]iroducing machine having myinvention applied thereto. Fig. 2 is a sectional view, some parts inelevation, taken on the line 2-2 of Fig. 1. Fig. 3 is a horizontalfragmentary sectional view, some parts in plan, taken on the line 3 3 ofFig. 2. Fig. 4 is a cross sectional view, some parts in elevation, takenon the line 1- L1 of Fig.2. Fig. 5 is a cross sectional View, parts inelevation, on the line 5-5 of Fig. 2. Fig. 6 is a fragmentary sideelevational. view of part of the setting or adjusting apparatus.

Referring to the drawing, 1 is a suitablev base, such as the top of theusual box inclosing the motor for driving the sound record. The soundrecord 2, here shown by way of example, as being of the disk form,though it may be of any suitable form, rests upon the felt or othersuitable material 3 which in turn is disposed upon the platen or turntable which isx driven in the usual way by the shaft 5 of the drivingmotor.

The usual hollow sound transmitting arm 6, part of which has beenomitted, is movable about aivertieabaxis on a bracketLl'notSpecification of Letters Pat-ent.

example,

shown, secured to the motor box. Attached to the arm 6 is the hollowbend 7 communieating with'the interior of the arm 6 and with the soundbox-S carried on the end of Patented Apr. 13, 1915. Application fliedJanuary 14, 1913. Serial No. 741,955.

the member 7, the member 7 having pivotal i movement about a horizontalaxis upon the member 6, as is wel] understood in this art. The sound boxS carries the usual reproducing needle or stylus 9 which engages therecord 2 asthe latter revolves. In moving from the ciroiiinfereiice ofthe record 2 toward the center, in traversing the successive spirals inthe record, the stylus 9 swings in an arc Whose center is the pivotalaXis of the arm 6.

On one corner of the base of top l 'is mounted the usual manual brakecomprising the brake shoe 10 which is adapted to engage the peripheralor outer surface 11 of the platen 4 to bring the saine to rest.

The

shoe 10 is released, as well understood in the art, by the clockwisemovement of the hand lever 12, as viewed in Fig. 1 about its pivot,which movement releases the brake shoe to the control of a spring, whichspring presses the shoe against the surface 11. And movement 0fthe lever12 in counter-clockwise direction withdraws the brake shoe and holds itwithdrawn.

Secured to or integral with the post 13 is the arm 14: free of andacross and above the sound record 2. The post 13 is secured to the base1 by the bolt 15 which may be tightened to such degree as to producesuflicient friction between the post 13 and the base 1 to cause the arm14, for the purpose of this invention, to remain in any position towhich it may be shifted about the bolt 15 as a center..'l`he'arin'14'may be of any suitable shape, but it is here shown, byWay of as of channel section. Near its outer end it carries a block 16pivoted at 17 to the arm 14, so that the block 16 may move upon avertical axis with respect to the arm 14E. Within the block 16 there ispivoted at 18 the rod 19 movable about the horizontal axis formed by thepivot 18. At its inner end the rod 19 has a pivot 2 0 upon which is Ysupported the pin 21. The lower end of the .Zontal pivot 18. As seen inFig. 3, the pin 21 is normally out of alinement with the hole 25. Themovement of the pin'21 into the hole 25- accompanies the pivotalmovement of the block 16 about its vertical pivot v17.

At 26a there is a web extending trans- .ver'sely to the channel 14, suchweb having an inclined edge 27, as indicated in Fig. 5.

Pivoted at 28 to thJ under side of the platen 4 is the member 29 havingthe downwardly extending cheek 30 adapted to engage the inner side ofthe flange 4a ofy the platen 4, being held normally in such position bythe spring 31 secured at its one end to the flange 4al and engaging withits outer end thexmember 29. Extending under the lower edge of theflange 4El is the lug 32 secured to or integral with the cheek 30, thelug 32 extending out beyond the periphery of the flange 41and as theplaten. 4 revolves passes through the space or slot 26.

Pivoted at 33 to the base 1 is the lever 34 Whose outer end is connectedby link or" other connecting means 35 with the hand lever 12 of thebrake releasing mechanism. At 36 the lever 34 has an upwardly extendingllange which is adapted to be engaged,

under circumstances hereinafter' explained, by the flange 3() upon themember 29.

To the sound box 8 is secured a projection or lug 38 adapted to engagethe outer end paf the rod 19 as indicated by dotted lines in i 1. 'Theoperation is as follows: The sound record 2, which need be in no respectaltered for service with this braking apparatus, is placed in positionupon the platen 4 inthe well known manner. When the motor has beenstarted the stylusv traverses the sound recordV causing the reproductionof sound in the well known way. When the -selection has been completelyreproduced,

`the lug 38 engages the rod 19 shifting it in counter-clockwisedirection about its ivot 17, as viewed in Fig. 1, carr ing the pm 21from 'its normal position in icated in Figs. 1, 2, and 3 into alinementwith vthe hole 25 whereupon the pin21 dropsv into. the space or slot 26,the-`rod.19 movin uponl its horizontal pivot 1,8 during this droppingmovement. The lug 32, .whichnormally passed freely throu gh the slot 26,now engages the pin 21 causin the flange 37 to move inwardly about itsivot 28 in opposition to' spring 31, and whi e so4 held inwardly by thepin-21 the flange 37 engages the flange 36 upon the lever 34 causing aclockwise movement of the lever 34 about its pivot 33 as viewedinFig. 1. This causes a pull to be transmitted to the lever 12 throughtlieconnection 35 with the result that the brake-is tripped or released orset and the shoe 10 engages the platen 4 stopping the sound recordmovingsystem. When a new record has been placed upon the platen the sound boxmay be moved manuali center of the record until stylus 9 is in the lastsound reproducinggrooveof the record. Then the arm 14 1s swung upon itspivot 15 to bring the rod 19 near or against the lug 38. Then the stylusis returned to the start of the record. Then by pushing downwardly onthe outer end ofthe rod 19 the pin 21 will be lifted out of the hole'25and as the lower end of the pin 2l clears the upper surface of the lug24 the rod 19 engages the' inclined surface 27 of the web 26 and thecontinued downward movement of the outer end of the rod 19 isaccompanied by a lateral movement of the rod 19 about its pivot 17carrying the piii 21 to one side of the hole 25 to its -normal positionas indicated in Figs. 1, 2, and 3. Then upon the traverse of the recordby the stylus the brake is again applied as described.

Ii desired a pointer 39 may be provided upon the member 40 pivoted at 41to the arm 14. Backof the pivot 41. the member 40 is provided with a lug42 extending under the lowerA edge oi the arm 14 and beneath the rod 19.The rear end of the member 40 back of the pivot 41 may be made heavierthan the forward end carrying the needlet'i soy that normally the needleor pointer 39 is' raised from the record 2; or the arrangement mayl besuch that the pointer 39 can in no case come into actual contact ,withthe record 2.

This device may be used to position the arm 14 without manually movingthe sound boX 8 across the record for purposes cf setting the arm 14.Thus, when a record has been put in position, the pointer 39 may bebrought to the last sound record groove in the record and the forwardend of member 40 depressed to bring the pointer 39 into such groove.This properly locates the armI 14. This depression of the member 40 willcause the lug 42 to lift the rod 19, which has dropped due to thebraking of the previous record, lifting the pin 21 free of the hole-less accuracy. But the accuracy will be 'still greater if the pvot 15of the arm 14 were 'on the other side of the sound record, that is, nearthe top of Fig. 1, for then the arm 14 and the arm 6 would be morenearly concentricallyk pivoted. In such case the memover toward themaaien ber l0 would be pivoted on the that is, the left hand edge, berle.

What I claim is:

l. The combination with a rotating member, of an arm having an inclinedsurface, a rod having pivotal movement in different directions withrespect to said arm, a member moyable over said rotating member andadapted to,actuate said rod, said rod when actuated being deflected bysaid surface, a brake for said rotating member, and brake controllingmeans carried by said rod.

t2. The combination with a rotating member, of a brake therefor, a brakecontrolling member, means carried by said rotating member for actuatingsaid brake controlling member, a member` having a hole a rod, a pincarried by said rod and adapted to enter said hole to come into themeans, and means movable over said rotating member for actuating saidrod.

3. The combination with a rotating member, of a brake therefor, abrakecontrolling member, means carried by saidirotating member for actuatingsaid brake controlling member,l a member having a hole, a rod, a pincarried by said rod and adapted to enter said hole to come into the pathof said means, means movable over said rotating member for actuatingsaid rod, and means to which said rod is pivoted adjustable with respectto said rotating member.

Ll-. rhe combination with a rotating member, of a brake setting lever,of a second member movable with said rotating member and adapted toIattuate said lever, an arm extending in proximity to said rotatotheredge, Fig. l, of mempath of said ing member, a rod pivoted thereon, anda member controlled by said rod and brought into the path of travel ofsaid second mem? ber.

5. The combination With a rotating member, of an arm adjustable withrespect to and extending in proximity to said rotating member, a rodpivoted to said arm for movement parallel with the face of said rotatingmember and to and away from the face of said rotating member, and brakesetting means actuated by said rod.

6. The combination with a rotating member, of a brake setting lever, ofa second membermoizable with said rotating member and adapted to actuatesaid lever, an arm extending in proximity to said rotating member, a rodpivoted thereon, controlled by said rod and-brought into the path oftravel of said second member, and means movable across the face of saidrotatable member adapted to actuate said rod.

7. The combination With a rotating member, a brake controlling memberrotatable with said rotating member, a pivoted rod disposed in proximityto the face of said rotatable member, means adapted to move across theface of said rotating member and actuate said rod, and means carried by'said rod and brought into the path of travel of said brakecontrollingmember when said rod is. actuated. v

ln testimony whereof ll have hereunto ailixed my signature in thepresence of the two subscribing Witnesses.

FRANCIS W. DOLER. Witnesses z Nieman B. EVANS,

lGLnANon T. MCCALL.

a member

